Information about eight four-cylinder automobiles judged to be among the most fuel
Chapter 11, Problem 11.9(choose chapter or problem)
Information about eight four-cylinder automobiles judged to be among the most fuel efficient in 2006 is given in the following table. Engine sizes are in total cylinder volume, measured in liters (L). Car Cylinder Volume (x) Horsepower (y) Honda Civic 1.8 51 Toyota Prius 1.5 51 VW Golf 2.0 115 VW Beetle 2.5 150 Toyota Corolla 1.8 126 VW Jetta 2.5 150 Mini Cooper 1.6 118 Toyota Yaris 1.5 106 a Plot the data points on graph paper. b Find the least-squares line for the data. c Graph the least-squares line to see how well it fits the data. d Use the least-squares line to estimate the mean horsepower rating for a fuel-efficient automobile with cylinder volume 1.9 L
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